Sh:967

• Mildenberger, H., & Shelah, S. (2011). The minimal cofinality of an ultrapower of \omega and the cofinality of the symmetric group can be larger than \mathfrak b^+. J. Symbolic Logic, 76(4), 1322–1340. DOI: 10.2178/jsl/1318338852 MR: 2895398
• Abstract:
  We prove the statement in the title
• Version 2011-01-05_11 (22p) published version (20p)

@article{Sh:967,
 author = {Mildenberger, Heike and Shelah, Saharon},
 title = {{The minimal cofinality of an ultrapower of $\omega$ and the cofinality of the symmetric group can be larger than $\mathfrak b^+$}},
 journal = {J. Symbolic Logic},
 fjournal = {The Journal of Symbolic Logic},
 volume = {76},
 number = {4},
 year = {2011},
 pages = {1322--1340},
 issn = {0022-4812},
 mrnumber = {2895398},
 mrclass = {03E17 (03E05 03E35)},
 doi = {10.2178/jsl/1318338852}
}